baber/WOPTO huggingface dataset:
Patent JP-H0289805-A (JP)
Title: Screw for board
Inventor: TSUZUKI CHITOSHI
IPC: F16B25/00
Filed: 1988-09-24
Abstract: PURPOSE:To prevent production of fine splits, to position a head part flush with the surface of a board, and to provide an excellent mounting surface by a method wherein a slide part approximately in the shape of a conical trapezoid continued to a shaft part is provided, and a plurality of blade parts are formed along the taper surface of the slide part. CONSTITUTION:A screw 15 for a board comprises a screw part 8 and a heat part 16, and a biting part 10 in the shape of a long cone is formed on the tip side of a shaft part 9. The head part 16 has a slide part 18 formed on the under surface side of a disc part 17 having a given size in a state that an approximately trapezoidal shape having a taper surface at a given angle is down. A bottom part 20 on the disc part 17 of the slide part 18 is formed so as to have size slightly smaller than that of the disc part 17, and the disc part 17 is horizontally protruded from the surroundings of the bottom part 20 to form a shoulder part 21. Further, blade parts 22 are formed on the taper surface of the slide part 18 radially centering around an axis.
Patent JP-S62100512-A (JP)
Title: Multifunctional graft copolymer and its production
Inventor: OHATA MASATOSHI
IPC: C08F8/30
Filed: 1985-10-24
Abstract: PURPOSE:To obtain the titled copolymer for high-solid coatings of low viscosity capable of giving high-performance coating film, by reaction of a substituted styrene polymer with specific metallic compound and vinylidene compound followed by graft polymerization of acrylic monomer(s). CONSTITUTION:A (co)polymer of substituted styrene carrying at the benzene nucleus alkyl group with a number-average molecular weight 500-500,000 as the backhome polymer is allowed to react with a metallic compound of formula MR3 (M is metal element belonging to the Ia group in the periodic table, R3 is organic group) followed by a vinylidene compound of formula I [R1 and R2 are each alkyl or (substituted) phenyl] to introduce at least two groups of formula II per molecule of the backbone polymer into the benzene nuclei in said backbone polymer. The resultant metallized polymer is subjected, using an anionic polymerization initiator, to graft polymerization of (meth)acrylonitrile and/or (meth)acrylic ester so that the resulting number-average molecular weight falls between too and 100,000, followed by reaction with a reagent capable of introducing such functional group as to directly bond to the active end of each branched chain or be reactive with crosslinking agent.
Patent JP-H0977266-A (JP)
Title: Palletizing hand
Inventor: UENO TOSHIYUKI
IPC: B25J15/06
Filed: 1995-09-19
Abstract: PROBLEM TO BE SOLVED: To surely suck a work even if the upper surface of the work is changed in its position in the vertical direction or tilted. SOLUTION: A work 4 is sucked by a sucked 58. When the vertical position of the work 4 is changed, a spring 57 is contracted so that a rod 53 is slid relative to a bearing plate 51 and the space between the bearing plate 51 and a suction cup mounting plate 56 is narrowed. When the upper surface of the work 4 is tilted, a spherical bearing 55 is bent and the suction cup mounting plate 56 is tilted relative to the rod 53. A slide mechanism is provided in the spherical bearing 55, whereby according to the tilting of the suction cup mounting plate 56, the slide mechanism in the bearing is slid to enable tilting of the plate 56.
Patent JP-H0289533-A (JP)
Title: Forming method for synchronous joint
Inventor: MAEDA TOSHIO
IPC: B21K1/14
Filed: 1988-09-23
Abstract: PURPOSE:To improve the durability and working accuracy of a punch by extruding a rolling contact surface of a track groove and the end part in the axial direction of an undercut part regulating with a tapered sided provided on a punch and ironing the outer peripheral part. CONSTITUTION:A blank 8 is formed for an outer wheel of a synchronous joint having track grooves 12 extending in the direction of a shaft in a hollow cup shape and having undercut parts 22 in the hollow part. Accordingly, the outer peripheral shape corresponds nearly to the shape of the inner peripheral surface of the blank 8 and a preform 4 is extruded by a punch 30 having tapered sides 42, 44. The tapered sides enlarged to the opened side are formed by the tapered sides 42, 44 at the end parts of the opened sides such as rolling contact surfaces 18, etc., of the blank 8. Thus, galling at the time of releasing is prevented, load to the punch 30 is reduced and the durability is elongated. A 2nd punch having the same tapered sides as the tapered sides 42, 44 is inserted into the hollow part of the blank 8 and the outer peripheral surface of the blank 8 is formed by a die with ironing toward the axial direction. At this time, since the position of the preform to the punch is controlled by the tapered side, the accuracy for positioning can be improved.
Patent JP-2000065848-A (JP)
Title: Rolling bearing unit with rotational speed detection device
Inventor: OKUMA TAKEO
IPC: F16C19/00
Filed: 1998-08-26
Abstract: PROBLEM TO BE SOLVED: To prevent the disconnection of a harness for taking out a detection signal of a sensor by preventing an outer ring for supporting the sensor from rotating relative to a housing. SOLUTION: An outer ring 1 press fitted in the inner diameter side of a housing 20 is held by being interlaid between a locking collar part 21 and a segmental ring-shaped retaining ring 23 locked in an locking groove 22 of the housing 20. Also, a part of an engaging pin 25 installed on the end face of the outer ring 1 is engaged in the interval part between circumferential-direction both end faces 24 of the retaining ring 23. When the outer ring 1 is about to rotate relative to the housing 20, a part of the engaging pin 25 is bumped and fixed with either one end face 24 of the retaining ring 23.
Patent JP-H0581587-A (JP)
Title: Preamplifier for otdr device
Inventor: MIKAMURA YASUKI
IPC: H03H11/00
Filed: 1991-09-19
Abstract: PURPOSE:To suppress 'blind over edging' phenomena caused by frequency dispersion peculiar to a compound semiconductor. CONSTITUTION:The amplifier circuit 101 of the preamplifier consists of the compound semiconductor FET and it is a trans impedance type or a high impedance type. The feature of the preamplifier is that the equalization circuit 102 of RC circuit network constitution is provided for the output of the amplifier circuit. The equalization circuit 102 consists of a resistance R1 and a capacitor C1 connected in parallel and these and the load resistance RL compensates frequency dispersion of the amplifier circuit.
Patent JP-H1187103-A (JP)
Title: Resistor for power use
Inventor: SHINDO KOJI
IPC: C04B35/453
Filed: 1997-09-04
Abstract: PROBLEM TO BE SOLVED: To provide a resistor for power use having a large heat capacity per unit volume, an appropriate resistance, and a temperature change rate which does not become negative over a wide temperature range by forming resistor mixing specific amounts of titanium and chromium in a main component composed of zinc oxide as additional ingredients. SOLUTION: A ceramic resistor contains zinc oxide as a main component and titanium and chromium as additional gradients. The mixing ratio of the titanium is adjusted within a range from about 0.5 mol.% to about 20 mol.% expressed in terms of titanium oxide and that of the chromium is adjusted within a range from about 0.5 mol.% to about 10 mol.% expressed in terms of chromium oxide. Theses components, water, and a binder are sufficiently mixed in a ball mill. After drying, the mixture is granulated and molded with a mold. The molded body is sintered in an electric furnace, etc., and the resistor is obtained by polishing the end faces of the sintered body and forming electrodes. The density of the sintered body is adjusted to about 5.30 g/cm<3> .  Therefore, a resistor having a large heat capacity per unit volume, an appropriate resistance value, a positive temperature change rate, and a sufficiently high surge current resisting characteristic can be obtained.
Patent JP-H03104033-A (JP)
Title: Optical reader
Inventor: FURUMIYA MASAAKI
IPC: G11B7/1356
Filed: 1989-09-18
Abstract: PURPOSE:To keep the C/N of a reproducing signal approximately constant without being affected by the wavelength fluctuation of a light source by providing a thin film structure body on a prescribed reflecting surface so as to compensate a phase difference change to the change in the wavelength of light to be made incident to a detecting optics. CONSTITUTION:Light from a semiconductor laser 11 is made parallel and transmitted through beam splitters 14 and 15 while executing beam shaping. Afterwards, the light is reflected by a full reflection mirror 16 to rise up, and is condensed through an objective lens 17 onto a magneto-optical disk 18. Then, the reflected light is reflected respectively by the beam splitters 15 and 14 and the light reflected by the splitter 15 is guided to a magneto-optical signal detecting optics 21. On the other hand, the light reflected by the splitter 14 is guided to an error signal detecting optics 25. Thin film structure bodies 31 and 32 are respectively provided in the mirror 16 and the splitter 15 and the wavelength dependency of phase difference in the light returning to the optics 21 is canceled so as to be almost zero in the fluctuation rage of the wavelength for the light from the laser 11.
Patent JP-S6394038-A (JP)
Title: Engine control device in vehicle provided with automatic transmission
Inventor: ABE MITSUTOSHI
IPC: B60W10/10
Filed: 1986-10-08
Abstract: PURPOSE:To make it possible to reduce shocks upon speed change, by carrying out compensating control such that during shift-down of an automatic transmission, the output power of an engine is restrained for a predetermined time from the time point of the shift-down. CONSTITUTION:An automatic transmission 1 is controlled by a control section 6 in which speed change patterns are stored, and during shift-down, an internal speed change gear mechanism is change over in accordance with a shift-down signal delivered from the control section 6. In this arrangement, since a some degree of delay is present in the change-over of the speed change gear mechanism, an engine output power control means 5 restrains the output power of an engine 2 through the intermediary of an engine output power adjusting means 3 within a predetermined time from the time point when a detecting means 4 detects a shift-down point in dependence upon a speed change pattern, or within a predetermined time until a drop in torque occurs, so that the drop in torque is made to be moderate. Thus, it is possible to reduce generation of shocks due to drops in torque.
Patent JP-H04228178-A (JP)
Title: Device and method for page recall of data in non-volatile dram memory device
Inventor: FUKUMOTO KATSUMI
IPC: G11C14/00
Filed: 1991-09-19
Abstract: PURPOSE:To enable a user to assign a start address by applying the start address to a counter circuit via an address selection circuit and using the output of the counter circuit as a page recall start address. CONSTITUTION:The address selection circuit 90 applies the address to either of the counter circuit 70 or an address decoding circuit 225 according to the internal state of the circuit 90 when there is the input from an external address pad 100. Then, the address signal can be sent to the input 50 of the circuit 70 and this signal is returned into the circuit 90 and is sent to the circuit 25. The user is able to arbitrarily select the address or automatically generates the address.
Patent JP-H0563649-A (JP)
Title: Full duplex 2-way optical communication method
Inventor: FUJISAKI AKIRA
IPC: H04B10/532
Filed: 1991-08-28
Abstract: PURPOSE:To attain the full duplex 2-way communication among all stations as a master station provided to both ends of a one-core optical fiber cable and two or over of slave stations provided on the way of the optical fiber. CONSTITUTION:A master station 2(3) is arranged to both ends of a onecore optical fiber 1, and 2 or over of slave stations 41-4n are arranged on the way of the optical fiber 1, each slave station sends an optical signal to the optical fiber 1 by external modulation and an optical signal is received from the optical fiber 1. A carrier with a different frequency is used for each transmission between the master stations, from a slave station to a master station and from a master station to a slave station. One master station demodulates an optical signal from the other master station and each slave station, modulates the optical signal again and sends the resulting signal to each slave station, modulates again the modulation signal of each slave station and sends the result to the other master station, and the other master station demodulates the optical signal from the one master station. Furthermore, the other master station demodulates the optical signal from the one master station and modulates again the demodulation signal and sends the result to the slave station.
Patent JP-H04119829-A (JP)
Title: Polyethylene resin pipe excellent in weldability and manufacture thereof
Inventor: MATSUNAGA HIDEKI
IPC: B29C48/32
Filed: 1990-09-11
Abstract: PURPOSE:To provide a polyethylene resin pipe showing excellent weldability and capable of being easily and certainly connected with high bonding part strength by thermal welding by forming a pipe from a medium density polyethylene resin having a melt flow rate of 0.15-0.23g/10min and a melt index of 3.4X10<4>-4.0X10<4> poise at 210 deg.C. CONSTITUTION:A medium density polyethylene resin is melted to be subjected to extrusion molding at extrusion temp. of 190-240 deg.C. At this time, a pipe is molded from a polyethylene resin excellent in weldability having a melt flow rate of 0.15-0.23g/10min and melt viscosity of 3.4X10<4>-4.0X10<4> poise at 210 deg.C.
Patent JP-S60131246-A (JP)
Title: Method and apparatus for pattern-coating molded shape and the like and screen plate thereof
Inventor: KURACHI KAZUHIRO
IPC: B05D5/06
Filed: 1983-12-20
Abstract: PURPOSE:To eliminate the need for a technique of a high order in an excellent working atmosphere, and to coat a pattern, etc. efficiently, finely and positively by applying paints on the surface of a body to be coated while a squeegee is pressed and slid onto a screen. CONSTITUTION:A screen plate 13 in which both-side end pieces of a screen 14 are held by screen frames 15a, 15b is fast stuck to or arranged at a predetermined interval to the surface T of a body to be coated. Paints are applied on the surface T of the body to be coated from the exposed section of the screen 14 with the pressing and sliding of a squeegee 51 on the screen 14 while the squeegee 51 is pressed and slid on the screen 14 and the surface of the screen 14 immediately after the pressing and sliding of the squeegee is separated from the surface T of the body to be coated. Accordingly, a large amount of complicate patterns can be coated finely and easily.
Patent JP-S6484213-A (JP)
Title: Electronic endoscope device
Inventor: FUJIOKA YOSHIO
IPC: G02B23/24
Filed: 1987-09-28
Abstract: PURPOSE:To obtain images groups in which the same object is image-picked up simultaneously by plural kinds of irradiation light quantities by storing a video signal in which an irradiated objected is image-packed up in plural image memories corresponding to the plural kinds of irradiation light quantities, respectively synchronizing with the switching of the irradiation light quantity. CONSTITUTION:The video signal in which the irradiated objected is image-picked up is stored in the plural image memories 15a and 16a, respectively corresponding to the plural kinds of irradiation light quantities by an image storage means synchronizing with the switching of the irradiation light quantity as irradiating the object by switching the plural kinds of irradiation light quantities sequentially by irradiation light quantity adjusting means 12 and 14. In such a way, it is possible to image-pick up images answered to plural requests for the same object in which the level of the light quantity is suppressed at minimum so as not to generate a saturation state, or the irradiation light quantity is increased to improve an S/N simultaneously.
Patent JP-S6299406-A (JP)
Title: Production of copper powder
Inventor: HAYASHI HISAO
IPC: B22F9/20
Filed: 1985-10-28
Abstract: PURPOSE:To produce spherical metallic copper powder having a narrow grain size distribution width, excellent dispersibility and very small grain sizes by converting a copper hydroxide slurry to a copper oxide slurry by hydrazine or the compd. thereof then reducing the slurry by the hydrazine or the compd. thereof. CONSTITUTION:An alkali such as NaOH is brought into reaction with a copper ion-contg. aq. soln. at 3-7pH and 20-60 deg.C liquid temp. to form the copper hydroxide slurry. The copper hydroxide slurry is brought into reaction with the hydrazine or the compd. of the hydrazine at 30-90 deg.C liquid temp. and 3-6pH to prepare the copper oxide (substantially copper suboxide) slurry. The copper oxide slurry is heated to 30-80 deg.C and the hydrazine or the compd. thereof is added thereto to reduce the copper oxide to metallic copper so that the copper powder having <=3mum grain size and the narrow grain size distribution width is deposited. The hydrazine or the like to be used in the above- mentioned two stages is used in an amt. of 1-3 times the required theoretical amt. The resulted copper powder is subjected to a post treatment with a varnish soln., water, alcohol or further fatty acid-contg. soln. by which the high-purity copper powder having the oxidation resistance is produced.
Patent JP-S60134590-A (JP)
Title: Line sequential discriminating circuit
Inventor: KURIBAYASHI MICHIO
IPC: H04N11/18
Filed: 1983-12-22
Abstract: PURPOSE:To attain discrimination operation at a predetermined prescribed position by constituting the titled circuit that a discriminating signal is generated based on a pulse synchronized with a horizontal synchronizing signal and whose one horizontal scanning period is ensured. CONSTITUTION:A synchronizing signal separating circuit 58 separates a horizontal synchronizing signal SYN from a composite video signal NTSC. A horizotal scanning period interval converting circuit 59 inputs the signal SYN so as to extract an HD pulse of 1H period and inputs the result to a frequency division circuit 27 having a reset terminal. The circuit 27 inputs the HD pusle and gives 1/2-frequency-division thereto. On the other hand, a line sequential color difference signal LSS comprising color difference signals R-Y and B-Y is inputted to a clamp circuit 22, where the signal is clamped to a prescribed potential. The clamped line sequential chrominance signal is sampled by a sampling circuit 23. When a sampled value is larger than a reference voltage, a reset pulse generating circuit 25 outputs a reset signal to the circuit 27. Thus, the discrimination signal ID corresponding to the line sequential color difference signal is obtained from the circuit 27.
Patent JP-H0991725-A (JP)
Title: Optical pickup of optical information recording and reproducing device
Inventor: YOKOTA YASUO
IPC: G11B7/135
Filed: 1995-09-20
Abstract: PROBLEM TO BE SOLVED: To provide an optical pickup of an optical information recording and reproducing device which suppresses the temperature rise of the object lens due to increase of the heat dissipation of coil and causes no thermal deformation and fusion of the object lens even when the current is made to flow through the driving coil and long-term continuous fast driving is caused under high temperature. SOLUTION: The object lens 1 is held in the near center of the lens holder 2. A focus coil 3 is wound around the outer peripheral side of the lens 2. Two tracking coils 4 are fixed to each peripheral side parallel to the tracking direction T of the lens holder 2. A yoke hole 5 for inserting an inner yoke is installed in the lens holder 2 between the tracking coil 4 and the object lens 1. A through heat dissipating hole 101 is opened between the object lens 1 and the focus coil 3 inside the lens holder. By adopting such constitution and utilizing the air inside the hole 101 as an thermal insulation member, a heat insulated region is formed between the object lens 1 and the focus coil 3.
Patent JP-H03102575-A (JP)
Title: Picture processing device
Inventor: IIJIMA TETSUO
IPC: G05D3/00
Filed: 1989-09-18
Abstract: PURPOSE:To trace a moving object at high speed by processing a picture by interlocking a first object recognizing means to recognize an object according to a taken-in two-dimensional picture and a second object recognizing means to recognize a high-speed moving object compared with the first object recognizing means. CONSTITUTION:In respect of a first picture screen 11 corresponding to a taken-in picture, the moving object is detected by a detecting means 17, and a window 12 including the moving object 2 is generated immediately by a window generating means 18. The position from a camera of the object caught by the window 12 is measured by a distance measuring means 20, and simultaneously, is fed back to a focus control part 21. Information other than the window 12 is executed by a processing circuit 23 independently of this. The device is constituted so that the picture of the object in the window 12 obtained as the result of focus control is reflected only in the window 12. Thus, since the processing of a background picture can be made slow compared with the tracing of the moving object, it can be executed correctly as well.
Patent JP-H1067579-A (JP)
Title: Production of double-layer water-permeable paving block
Inventor: KONDO AKIRA
IPC: C04B18/02
Filed: 1996-08-22
Abstract: PROBLEM TO BE SOLVED: To produce a lightweight double-layer water-permeable paving block having a high added value by effectively utilizing an incineration furnace ash such as a sewage sludge. SOLUTION: A mixed powder F, prepared by adding 6-20 pts.wt. total amount of a mixture E containing a clay and a glass powder and/or water glass to be bonding parts to 100 pts.wt. mixed aggregate D obtained by mixing >=60 pts.wt. porous aggregate A, prepared by granulating an incineration furnace ash and baking the granulated ash and having >=0.6mm grain diameter, <=1.45 average apparent specific gravity and closed cells with <=40 pts.wt. total amount of an aggregate B of a crushed porcelain and/or an aggregate C of a crushed feldspar and capable of forming a bulk layer is filled in a pressing mold to fill a predominant quantity of the volume of the pressing mold.  The balance of the volume of the pressing mold is then filled with a mixed powder H, obtained by adding 6-20 pts.wt. total amount of the mixture E containing the clay and the glass powder and/or the water glass to be the bonding parts to 100 pts.wt. mixed aggregate G containing >=80wt.% total amount of the aggregate B of the crushed porcelain and/or the aggregate C of the crushed feldspar and capable of forming a surface layer. The bulk layer and the surface layer are integrally press formed and subsequently baked to produce a double-layer water-permeable paving block.
Patent JP-S6396790-A (JP)
Title: Magnetic disk device
Inventor: YOKOYAMA NOBUHIRO
IPC: G11B33/14
Filed: 1986-10-13
Abstract: PURPOSE:To prevent a dehumidifying agent, a deoxidier and a rust preventive from being last and to evade each member in the interior from being deteriorated by completely blocking air in and outside and attaining a shroud with a hermetical seal structure. CONSTITUTION:The shroud 14 completely houses a spindle motor 6. Besides to that, the shroud 14 houses a magnetic disk 5, an actuator 10, and a magnetic head 12 installed on an arm 11. At least one of the dehumidifying agent, the deoxidier and the rust preventive 13 is provided in the shroud 14. In such a magnetic disk device the shroud 14 is constituted so as to have the hermetical seal structure which can completely block air in and outside. Thus the function of each member is kept satisfactory for a long time, whereby the service life of the entire magnetic disk device is prolonged.